去掉class="topPart" (padding-top: 45px)

src/app/east/east.page.html

 <ion-header mode="ios" translucent="false">
     <ion-toolbar color="secondary">
         <ion-buttons slot="start">
-            <ion-back-button text="" defaultHref="/index"></ion-back-button>
+            <ion-back-button text=""></ion-back-button>
         </ion-buttons>
         <ion-title class="ion-tittle">{{fieldRegionName}}控制</ion-title>
         <ion-buttons slot="end">
-            <ion-button style="font-size: medium">刷新</ion-button>
+            <ion-button style="font-size: medium" (click)="pullToRefresh()">刷新</ion-button>
         </ion-buttons>
     </ion-toolbar>
 </ion-header>
 <ion-content>
     <div class="mainCon" style="" [@EnterLeave]>
         <ion-content style="padding-top: 45px ;margin-bottom:45px ;position:relative;overflow-y:auto;">
-            <div class="topPart">
+            <div>
                 <ListItem multipleLine *ngIf="yewei || yewei === 0">
                     当前液位:
                     <div class="process">

src/app/other/other.page.html

 <ion-header mode="ios" translucent="false">
     <ion-toolbar color="secondary">
         <ion-buttons slot="start">
-            <ion-back-button text="" defaultHref="/home"></ion-back-button>
+            <ion-back-button text=""></ion-back-button>
         </ion-buttons>
-        <ion-title calss="ion-tittle">{{fieldRegionName}}控制</ion-title>
+        <ion-title class="ion-tittle">{{fieldRegionName}}控制</ion-title>
         <ion-buttons slot="end">
             <ion-button style="font-size: medium" (click)="pullToRefresh()">刷新</ion-button>
         </ion-buttons>
@@ -11,7 +11,7 @@
 </ion-header>
 
 <ion-content>
-    <div class="mainCon" style="padding-top: 45px;" [@EnterLeave]>
+    <div class="mainCon" [@EnterLeave]>
         <div class="topPart">
             <ListItem multipleLine *ngIf="yewei || yewei === 0">
                 当前液位: